LMAO Thanks Jay-T....I'd rail that ol' nasty!
I have a similar problem, my ex use to get pissed because she had a really hard time getting me to cum from a BJ. Try a couple of things
1) Face Fucking her
2) Have her blow you for awhile, then fuck her for a bit and when your getting close have her blow you/jack you off and finish that way.
3) A girl I'm banging right now has a tongue ring and knows how to use it...holy shit. Not saying to go get her tongue pierced, but they sell sex toys:http://www.adameve.com/search.aspx?st=tongue
which you might give a shot.
4) Remember that a lot of sex "Problems" are mental, she's sucking your dick and you're thinking "Fuck, this feels good, but I'm not going to cum and she's going to be pissed." That's fucking with your dick.
Really, there isn't a lot of downside here....damn you for having staying power right? LOL
Hope this helps a little.
Henry Rollins - “Scar tissue is stronger than regular tissue. Realize the strength, move on.”
“I believe that one defines oneself by reinvention. To not be like your parents. To not be like your friends. To be yourself. To cut yourself out of stone.”